Recent content by josh84

Homework Statement A vector in the xy plane has a magnitude of 25 and an x component of 12. The angle it makes with the positive x-axis is: A)26 degree B)29 degree C)61 degree D)64 degree E)241 degree Homework Equations The Attempt at a Solution

Homework Statement Two vectors ahve magnitudes of 10 and 15. The angle between them when they are drawn with their tails at the same point is 65 degree. The component of the longer vector along the line of the shorter is: A) 0 B)4.2 C)6.3 D)9.1 E)14 Homework Equations The...

Homework Statement A certain vector in the xy plane has an x component of 4 and a y component of 10. It is rotated in the xy plane so its x component is doubled. Its new y component is about: A. 20 B.7.2 C.5.0 D.4.5 E.2.2 Homework Equations The Attempt at a Solution

Homework Statement You are arguing over a cell phone while trailing an unmarked police car by 25m; both your car and the police car are traveling at 110km/h. Your argument diverts your attention from the police car for 2.0s (long enough for you to look at the phone and yell, "I won't do...

Homework Statement You are to fix dinners for 400 people at a convention of Mexican food fans. Your recipe calls for 2 jalapeno peppers per serving (one serving per person). However, you have only habanero peppers on hand. the spiciness of peppers is measured in terms of the scoville...

How do you find "t" using average velocity?

Homework Statement An object is released from rest and falls a distance H during the first second of time. How far will it fall during the next second of time? Homework Equations That's what I need to know. The Attempt at a Solution I think it is either 2H or...

Homework Statement An object starts from rest at the origin and moves along the x-axis with a constant acceleration of 4m/s^2. Its average velocity as it goes from x=2m to x=8m is? Homework Equations I think V=bt^2. But not quite sure. The Attempt at a Solution...